Home / 13,525.95-18,665.91-7,557.87

Finding the Fourth Proportional to 13,525.95, 18,665.91 and 7,557.87

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Solution

The fourth proportional to 13,525.95, 18,665.91 and 7,557.87 is: 10,429.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.95 : 18,665.91 = 7,557.87 : x
  2. Step 2: Convert to fraction form
    13,525.95/18,665.91 = 7,557.87/x
  3. Step 3: Cross multiply
    13,525.95x = 18,665.91 × 7,557.87
  4. Step 4: Simplify right side
    13,525.95x = 141,074,591.21
  5. Step 5: Solve for x
    x = 141,074,591.21/13,525.95
  6. Step 6: Final answer
    x = 10,429.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.